Pars plana tube insertion is a surgical procedure used to treat glaucoma by inserting a tube into the pars plana region of the eye. The pars plana is located in the posterior segment of the eye, and the tube helps redirect aqueous humor, the fluid inside the eye, into a drainage reservoir to lower intraocular pressure (IOP).

This surgery is typically recommended for patients with refractory glaucoma who have not responded to medications or laser treatments. It is especially beneficial in cases of advanced glaucoma or those with failed previous surgeries.

Pars plana tube insertion offers long-term IOP control and helps prevent further optic nerve damage, with fewer complications compared to other traditional glaucoma surgeries.